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- W762470727 abstract "A three-part investigation was conducted on a gas turbine with a 300MW power output rating, fitted with a set of variable inlet guide vanes (VIGV’s) for air mass flow rate mitigation. The first part of the investigation involved the mathematical performance modeling of the gas turbine running on a simple cycle, as the airflow is lowered from its maximum value of 500 kg/s to 300 kg/s. The thermal efficiency and power output of the turbine was calculated at each value of load, and it was found to vary from 37% - 34%. Following this were the positive and negative deviations of the ambient temperature from the International Standardization Organization (ISO) temperature condition of 313 K. The model showed that at lower temperatures the turbine is capable of producing higher loads but is limited by the generator’s capacity limit. The efficiency of the Turbine was found to vary from 32% at the coldest day to 39% at an optimal condition.Secondly, the same type of investigation was conducted on the gas turbine but, this time, in a combined cycle configuration, with a steam turbine with a maximum magnitude of 250MW. It was deduced that the cycle performs much better in this configuration as heat was recovered from the exhaust gases (reaching up to 915 - 920 K), via a heat recovery steam generator (HRSG), to heat water into steam in the steam turbine. The steam turbine’s performance was assumed to behave identically to that of an ideal Rankine cycle. Efficiencies were found to almost double, with an ISO conditions efficiency of approximately 60%.Lastly, the combined cycle was configured with a Concentrated Solar Power (CSP) unit, with a power output of 50MW, in an Integrated Solar Combined Cycle; this further improved its efficiency. The same studies were conducted as the other two cases, except that this was done for three configurations, two involving adding solar heat into the Rankine cycle in a direct steam heat addition, and one involved heating of air prior to combustion in the Brayton cycle. The findings favored the use of this system, but due to time constraints, the final results were not extremely accurate." @default.
- W762470727 created "2016-06-24" @default.
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- W762470727 date "2013-01-01" @default.
- W762470727 modified "2023-09-27" @default.
- W762470727 title "Gas Turbine Performance Modeling for Integrated Solar Thermal Application" @default.
- W762470727 hasPublicationYear "2013" @default.
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